Lubricator for shafts



April s 1924.

. A1,489,466 c. STERN ET AL LUBRICATOR FOrR -SHAFTS Filed Nov. 16. 1921 2 Sheets-Sheet l E En.. ZZ

@Hamai April s 1924.

1,489,466 C. STERN ET Ai..

LUBRI CATOR FOR SHAFTS Filed Nov. 1e. 1921 Patented Apr. 8, 1924.

UNITED 'STATES' CHARLES STERN, or JERSEY CITY, AND RICHARD WALLACE BRAD-EN, oE NEWARK, NEW JERSEY, ASsIGNoRs To 2B. a s. MANUFACTURING PRODUCTS CORPORATION, or JERSEY CITY, NEW JERSEY, A CoRro-RATIo-N 01E NEW JERSEY.

LUBRICATOR FOR SHAFTS.

Application med November 16, 1921. seriai'No. 515,635.

To all whom t may concern:

Be it known that we, CHARLES STERN and RICHARD WALLACE BRADEN, citizens of the United States, residing at, respectively,

l Jersey City and Newark, in the counties of Hudson and Essex, vrespectively, and State of New Jersey, have invented certain new and useful Improvements in Lubricators for Shafts, of which the following is a specification.

The present invention relates to 'lubricators, and particularly to a packing and oiling box for shafts and thelike.

An object of the present invention is to provide a packing which is adapted to be placed about a shaft and provided with means for directly` feeding the oil or lubricant to the shaft without danger of leakage.

Another object of the invention is to provide a device with oil feeding'means capable of adjustment into dierent positions throughout the length or height of a packing box and whichare arranged to cooperate with and be held in positionby compressible packing elements.V

The invention Still further aims at the provision of a packing box having a plurality of oil feeders therein for conveying oil from the box directly to the shaft, and also having a compressible packing between the oil feeders and means for compressing the oil feeders and the packing together, and at the same time permitting the free flowing of the oil to the shaft in the desired quantity.

It isa still further aim of this invention to provide means whereby lubricant may be furnished to a shaft which passes` into the packing box itself, thereby insuring the-lubrication of the shaft; and to provide a packing which is at all times in position to absorb oil from thepacking box.

With the foregoing and other objects in view, the invention will be more fullyy described hereinafter, and will be more particularly pointed out inthe claims appended hereto. Y A

In the drawings, wherein like symbols refer to like or corresponding parts .throughout the several views, l.

Y Fig. 1 is a longitudinal section taken through an oiling box constructed according tothe present invention and asapplied to a shaft. a

Fig. .6 isa longitudinal section'throu h l the oiling box, Showing a modification in t e Vpacking nut.; and, A

Fig. 7 isa side elevation of an oiling box embodying a modified form of attaching means forthe box.`

Referring t0 the drawings, the oiling box comprises a casing or receptacle 10 which is adapted to be placed about a shaft 1l or the like, and which is providedwith an inner concentric wall 12 spaced from the outer or main wall of the casing 10 vand which provides, between the walls, an annular chamber or 'receptacle 'for the reception of a lubricant, such as oil.

The receptacle 10 may be provided vat any oint or points Vwith removable plugs 13 t ough the openings of which the lubricant 'may be introduced into the receptacle. l

The casing or receptacle l0 may beattached Vto an adjacent support," Such 'as against the side of a casing, a bearing or the like in any suitable manner. In Fig. 1 the casinglO is shown as having aradial flange 14 at'one end-providedwith apertures 15` therethrough toreceive bolts or'the like by meansnof which the ange 14 may be securely ,fastenedto the support.

In Fig. 7 .the casing 10 is shown as provided at. itslower end with angularly disposed wrench receiving faces 14a by means of which ,thev casing may be turned; The casing also'has'a threaded spud 1,5a adapted .toV be-screwed into a correspondingly threaded Aopening. in the support for holdingthe casing'thereto. Y

The inner wall 12 VVof the receptacle 10 is shown as provided with spaced apart longitudinal slots or openings V16 extending lengthwise ofthe receptacle throughout aV 'considerableulength thereof,j and through which thev lubricant in the receptacle is adapted to pass toward the shaft 11. TheV casing 1()l is shown `as havinganinner closing wall'having a reduced axial opening therethrough for passage ofthe Shaft-11,

and the wall 17 is adapted to closely fit the shaft and extends inwardly beyond the wall 12 of the receptacle and provides, between the wall 12 and the shaft 11, a packing chamber, the inner end or bottom of ywhich is formed of the extension of the wall 17. The extension of the wall 17 is shown as formed at its inner side with an outwardly inclined or beveled face 18 forming a packing seat which slopes toward the shaft opening and upon which the packing is adapted to rest.

The other end of the casing 10 is shown as provided with an annular flange 19 projecting from the inner wall 12 and which is spaced about the shaft opening and forms a continuation of the packing chamber. Shown as fitting in the open end of the packing chamber, and within the flange 19 is a compression sleeve 2O having an inner diameter corresponding to that of the shaft opening and adapted to be forced down into the packing chamber by a packing nut 21 which is carried on the flange 19. As shown in Fig. 1, the nut 21 is in the form of a cap which lits over the flange 19 and has screw threaded engagement therewith, and is provided with an angularly faced nut portion 22 on its upper end by means of which the cap 21 may be turned. The upper closed end of the cap extendsinwardly beyond the flange 19 and engages the outer end of the compression sleeve 2O for moving the same inwardly when the cap is turned down upon the sleeve 19.

In Fig. 6 a modification of this construction is shown. The compression sleeve 20a has an internally threaded nut portion 21a which engages internal flange 19a. The outer end of the nut portion 21a is provided 'with an angular face extension 22a with which a wrench is adapted to engage for turning the compression sleeve 20a and the nut portion thereof for feeding the sleeve into the packing chamber.

In both forms of the invention, the co-mpression sleeve, 20 and 20a, is shown as provided with an inner beveled end 23 which slopes outwardly and toward the shaft opening for cooperation with the packing seat 18 to urge the packing toward the shaft when the parts are assembled.

The packing may comprise a plurality of compressible disks 24 having an internal diameter equal substantiallyrto that of the shaft opening and which are adapted to be placed in superposed relation upon the packing seat 18, and between the latter and the inner end of the compression sleeve 20. Villen the compression sleeve 2O is advanced inwardly the packing disks are compressed together and the packing is caused to press against the shaft 11. The packing seats or faces 18 and 23 are shown as located substantially at the opposite ends of the oil slots 16 so as to prevent the escape of oil berings 25 of a size to embrace the shaft 11r and having longitudinal slots 26 extending through the walls of the rings for admit-Y ting oil therethrough to thev shaft. Each ring 25 is shown as provided with a pair of spaced apart outstanding annular flanges 27 projecting from the opposite edge portions of the ring, and which are spaced apart sufliciently to hold the adjacent pack? ing from spreading into the openings 26. The flanges 27 are 'also of sufficient width to fill, transversely, the rpacking chamber so as to prevent the packing from being forced abo-ut the outer marginal edges of the flanges 27 into the oil spaces therebetween. As shown in Fig. 1, a pair of these oil distributors is used, and it will be understood that as the packing 24 is more or less compressed, these distributors will be correspondingly shifted lengthwise within the packing chamber, and the oil slots 16 are of suitable length to at all times convey the oil from the receptacle to these distributors.

From the above description it is thought that the operation and use of the oiling boxes Ywill be clearly understood, for when the receptacle 10 is placed about the shaft 11, or other suitable device to `be lubricated,

the packing 24, together with the desired j number of distributors, is placed within the packing chamber and the compression sleeve 20 is fitted in the open end of the chamber and forced toward the packing by the pack ing nut 21. As the packing nut is turned upon the flange 19, the packing 24 is compressed against the inclined faces l18 and 23 and also against the flanges 27 of the oil distributors. The packing is thus causedto press againstthe inner wall l12 of the receptacle and also against the shaft 11, particularly so since the packing faces 18 and 23 diverge inwardly toward the shaft and thus urge the packing to a greater degree against the shaft. The oil in the receptacle 10 iiows through the slots 16 into the oil distributors and is conducted therethrough directly to the shaft to the one ormore points desired throughout the length of the packing chamber. The oil is thus uninter- I ing from drying out. This packing Vbox with its oil distributors has the advantage of directly feeding or distributing oil on the desired points upon the shaft.

Of course the casing 10 may be given any suitable construction or form necessary for application to shafts or the like under various conditions, and in the present instance the casing is shown of integral annular construction.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specically described embodiment of this invention without departing from the spirit thereof.

What is claimed is:

l. A lubricator for shafts and the like comprising a casing having a substantially annular chamber for holding a quantity of lubricant and having means for the introduction of lubricant thereto, said casing having an inner tubular wall provided with elongated slots therein, a plurality of small packing rings placed endwise within said tubular wall and surrounding the shaft, and lubricating ring included between said packing rings and having openings communicating with the elongated slots in said inner wall of the casing at one side and directly with the surface of the shaft at the other side whereby fluent lubricant from the chamber is allowed access directly to the surface of the shaft.

2. A lubricator for shafts and the like comprising a casing having an inner wall of a tubular character adapted to extend about the shaft and being in spaced relation to the external surface of the shaft, said inner wall having a large number of slots elongated in the direction of the axis of the shaft, said casing having a substantially annular chamber therewithin of the substantial capacity for holding quantit of lubricant about the shaft, a number o relatively small packing rings placed end to end about the shaft and between the shaft and Ysaid inner wall of the casing, and a plurality of lubricant rings also of small size and adapted to be fitted between adjacent packing rings at suitable intervals, said lubricant rings having openings therein communicating with the elongated slots in the casing wall and with the outer surface of the shaft.

V3. A lubricator for shafts and the like comprising a casin having a substantially annular chamber or lubricant adapted to surround the shaft and said casing having an inner tubular wall spaced from the shaft and provided with elongated slots, a number of relatively thin packing rings surrounding the shaft and between the shaft and said slotted casing wall, and lubricant rings of a similar size adapted to be placed between adjacent packing rings, said lubricant rings having inner walls adapted to fit the external surfaceV of the shaft and provided with circumferentially elongated slots made radially through the rings and opening upon the surface of the shaft within and upon the elongated slots of the casing wall at their outer sides, said rin s having flanges extending outwardly su stantially flush with the outer edges of thev packing rings, and means to compress the packing rings together 'with the lubricant rlngs."

4. A lubricator for shafts and the like comprising a casing having an annular chamber for holding the substantial body of fluent lubricant and having means to introduce the lubricant thereto, said casin having an inner cylindrical wall provide with elongated slots extending substantially the length of the lubricant chamber, a beveled seat in the casing inwardly of said in'- ner wall, a plurality of thin packing rings placed about said shaft within said slotted wall and adapted to engage at one end against said beveled seat, a number of lubricant rings placed at intervals between said packing rings and each comprisin an annulus having a central openin to t closely about said shaft and provide with a relatively thin intermediate web having circumferentially elongated slots therein opening directly through the web and about said shaft, and a pair of wide anges rojecting outwardly from opposite ends of) the web and extending substantially iush with the outer edges of thepacking rings, the inner Asurface of said flanges being tapered toward the web, a follower having a bevel edge engaging the other end of said series of packing rings, and a nut upon the casing adapted to drive said follower against the rings.

5. A lubricator for shafts and the like comprising a casing ada ted to hold a substantial body of the lubricant and extending about the shaft, said casing having an inner slotted wall spaced from the shaft, a series of packing rings extending about the shaft and within said slotted wall, said series of rings embraced substantially within the length of the slots in'saidwall and communicating by reason of the slots with the lubricant in said chamber whereby to absorb the lubricant, and a lubricant ring included between certain of the packing rings and having openings therein communicatlng di- Y rectly with the iuent lubricant in the chamberftand with the exterior surface of the sha In testimony whereof we aix our signatures.

CHARLES STERN. RICHARD WALLACE BRADEN. 

